DYNAMICAL SCALING IN FRAGMENTATION

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Data

1993-12-15

Autores

Coutinho, K.
Adhikari, S. K.
Gomes, MAF

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American Institute of Physics (AIP)

Resumo

The dynamics of a fragmentation model is examined from the point of view of numerical simulation and rate equations. The model includes effects of temperature. The number n (s,t) of fragments of size s at time t is obtained and is found to obey the scaling form n(s,t) approximately s(-tau)t(omegasgamma e(-rhot) f(s/t(z)) where f(x) is a crossover function satisfying f(x) congruent-to 1 for x much less than and f(x) much less than 1 for x much greater than 1. The dependence of the critical exponents tau, omega, gamma and z on space dimensionality d is studied from d = 1 to 5. The result of the dynamics on fractal and nonfractal objects as well as on square and triangular lattices is also examined.

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Como citar

Journal of Applied Physics. Woodbury: Amer Inst Physics, v. 74, n. 12, p. 7577-7587, 1993.